Prepare release 0.24.0

[kt474]

Summary

Details and comments

Fixes #

[jyu00]

@kt474 can we wait for the second part of the fractional gates PR to be merged before releasing 0.24? Since the first part is already merged, which would cause confusing behavior without the second (see the PR description for more details)

[coveralls]

Pull Request Test Coverage Report for Build 9453202365

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 82.408%

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Totals
Change from base Build 9452478202:	0.0%
Covered Lines:	6071
Relevant Lines:	7367

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 9467315363

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 82.387%

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Totals
Change from base Build 9465549435:	0.0%
Covered Lines:	6048
Relevant Lines:	7341

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 9469564406

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 82.387%

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Totals
Change from base Build 9469387368:	0.0%
Covered Lines:	6048
Relevant Lines:	7341

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💛 - Coveralls